Year	Number
1960	1119181
1961	1145117
1962	1161377
1963	1177868
1964	1194617
1965	1211556
1966	1228760
1967	1246208
1968	1263928
1969	1281850
1970	1300052
1971	1324116
1972	1353138
1973	1382714
1974	1412978
1975	1443904
1976	1475552
1977	1507803
1978	1540805
1979	1558887
1980	1565082
1981	1571284
1982	1577520
1983	1583780
1984	1590074
1985	1596375
1986	1602710
1987	1609071
1988	1615465
1989	1621867
1990	1628303
1991	1634765
1992	1641262
1993	1645947
1994	1648822
1995	1651702
1996	1654592
1997	1657478
1998	1660373
1999	1663274
2000	1666183
2001	1669090
2002	1672106
2003	1675899
2004	1679705
2005	1683510
2006	1687328
2007	1691156
2008	1694997
2009	1698836
2010	1702689
2011	1706551
2012	1712984
2013	1721992
2014	1731060
2015	1740175
2016	1749352
2017	1758551
2018	1767798
2019	1775933
2020	1783251
2021	1789620
2022	1794532
2023	1797516